Automatic winding door-bell.



PATENTED MAR. 22, 1904.

B. FULLER. AUTOMATIC WINDING DOOR BELL.

APPLIGATION FILED MAY 11. 1903.

N0 MODEL.

75050153215567; z- JZQSFn UNITED STATES Patented March 22, 1904.

PATENT Orricn.

VIVIAN B. FULLER, OF INDIANAPOLIS, INDIANA.

AUTOMATIC WINDING DOOR-BELL.

SPECIFICATION forming part of Letters Patent No. 755,568, dated March22, 1904.

Application filed May 11, 1903. Serial No. 156,591. (No model.)

To all whom it may concern:

Be it known that I, VIVIAN B. FULLER, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Automatic WindingDoor-Bells, of which the following is a specification.

This invention relates to improvements in door-bells in which a gong issounded by blows from a spring-actuated hammer; and the object of theinvention is to provide means by the opening and closing of the door forauto- "matically winding the spring.

The object also is to provide a regulative meansor governor which willprevent the overwinding of the spring.

I accomplish the objects of the invention by the mechanism illustratedin the accompanying drawings, in which- Figure 1 is a detail inhorizontal section of a door and its casing, showing my inventionapplied thereto; Fig. 2, a front or outside View of the ringing devicewith the gong and outer plate of the frame removed to reveal the insidemechanism; Fig. 3, a back side view of Fig. 2; and Fig. 4:, a section onthe dotted lines 4: 4 of Figs. 2 and 3.

I Like characters of reference indicate like parts throughout theseveral views of the drawings.

5 is a door, 6 the door-casing, and 7 the hinges by which the door ishinged to the casing.

8 is a spindle or short shaft which is mounted in a frame comprising apair of plates 9 9, (see Fig. 4%,) connected by posts 10. This frame issecured to a base 11, which is fastened by screws 12 to the door. Thespindle 8 has the sleeve 13 mounted loosely on its inner end andextending through the inner plate 9, so as to receive'the ratchet-wheel14, which is mounted in a fixed manner thereon. Fastened to the side ofthe wheel 14: is the drum 15, within which is the band-spring 16, theinner end of which is fastened to the spindle 8 and its outer end to theinner wall of the drum, as shown in Fig. 4:. Mounted loosely on theshaft 8 is the cog-wheel 17, which is separated from the drum and springby the washer-plate 18. Mounted in a fixed manner on shaft 8 is theratchet-wheel 19,

the spindle 8, pawl 20, and ratchet-wheel 19, I

permitting the proper rotation.

22 is a pinion mounted on a. shaft supported by the frame. The pinion isdriven by engagement with wheel 17, and mounted on the same shaft withsaid pinion is the escapementwheel 23, which is controlled by the anchor24:, mounted on a suitable adjacent shaft which also carries the rod 25,which terminates with the hammer 26. The latter is vibrated by the abovemechanism, thereby striking and ringing the gong. A longitudinallyadjustable shaft having the disk 27, said shaft being held by spring 28in normal position with said disk under hammer-rod 25 to prevent thevibration of the latter, is moved by push-rod 29, terminating with asuitable button, so as to release the hammer-rod.

I will now describe the means for winding the spring 16 by the swingingof the door. The action of the spring 16 on wheel 14 is resisted by thespring-actuated pawl 30; but obviously by rotating the wheel 14: in thedirection permitted by its pawl drum 15, to which one end of spring 16is fastened, will be rotated, so as to wind up the spring.

31 is a drum mounted in a fixed manner on sleeve 13, to which it issecured by screw 32. The outer end of the sleeve has the annular flange33, between which and the drum 31 is the ratchet-wheel 34:, having a hubon one side which is extended into the bore of the drum. This hub ismutilated on one side to receive a post 35, seated in sleeve 13. The

adjustment of the wheel 3A on said sleeve is.

limited by contact of the post with the ends of the hub mutilation. Thediameter of said hub is enough less than that of the bore of the drum toallow the introduction of the coiled wire spring 36 between them. Thein- 100 ,7 in c, i ,1 I

ner end of this spring is secured to the drum 31 and the outer end tothe ratchet-wheel 34. (See Fig. 4.) When the tension on the bandspring16 is less than thetension of spring 36, a rotation of the ratchet-wheel34 will in like measure rotate the drum 31, and thence through sleeve13, ratchet-wheel 14, and drum the spring 16 will be wound, theratchetwheel 34 and drum 31 acting through spring 36; but when thetension of spring 16 exceeds that of spring 36 the rotary movement ofthe ratchet-Wheel 34 will not move the drum 31; but the wheel willoscillate within the limits fixed by its mutilated hub and post 35. Thedesired maximum tension of spring 36 is given at the time of assemblingthe wheel and drum on sleeve 8.

Mounted upon the drum 31 is an additional drum 37 having an annularchannel in which is seated the coiled wire spring 38. One end of thisspring is fastened to the plate 9 of the frame and the other end to thedrum 37 Pivotally secured to the drum 37 is a pawl 39, which is pressedby spring 40 into engagement with the teeth of the ratchet-wheel 34.Also secured to the drum in a rigid manner is the lever 41, to the outerend of which a chain 42 is fastened. The door is mortised in the mannershown in Fig. 1 to receive the above-described winding-drums, andleading into this mortise from the back edge of the door is the boredhole 43, through which the chain 42 is threaded in the manner shown, andthe end of the chain is made fast to the door-frame by staple 44 orother suitable means. Preferably the mouth of the bore will bereinforced with a metal thimble 45 to prevent wear. 7

The opening of the door drawson the chain, thereby shifting lever 41 andmoving drum 37 Pawl 39, by engaging ratchet-wheel 34, moves the latterwheel, which through spring 36, drum 31, sleeve 13, wheel 14, and drum15 winds spring'16 till tension of latter reaches that of spring 36,when the continued opening of the door oscillates lever 41 and its drumand ratchet-wheel 34 without further winding of spring 16.

Spring 38 in drum 37 is for the purpose of returning the drum and lever41 to first position after release by the chain.

bell, the combination, with a spindle, of a sleeve mounted on thespindle, a drum mounted on the sleeve, a coiled spring having one endfastened to the spindle and the other end secured to said drum, a gong,a hammer, means for vibrating the hammer by the force of the spring tosound the gong, a hinged door, means connecting the door and sleevewhereby by the movement of the door the sleeve will be rotated to windthe spring, a spring-actuated overwinding-preventer to prevent theoverwinding and means for regulating the tension of theoverwinding-preventer.

2. In a self-winding spring-actuated doorbell, the combination withaspindle, of asleeve mounted on the spindle, a drum mounted on thesleeve, a coiled spring having one end fastened to the spindle and theother end secured to said drum, a gong, a hammer, means for vibratingthe hammer by the force of the spring to sound the gong, a hinged door,means connecting the door and sleeve whereby by the movement of the doorthe sleeve will be rotated to wind the spring, an overwinding-preventerto prevent the overwinding of the spring and means for changing thesensitiveness or strain at which the overwinding means will operate.

3. In a self-winding spring-actuated doorbell, a spindle, a sleevemounted loosely on the spindle and adapted to rotate therewith in onedirection only, a drum rotating with the sleeve, a spring fastened tothe spindle at one end and to the drum at the other, a gong, a hammer,means for vibrating the hammer by the force of the spring, a seconddrummounted in a fixed manner on the sleeve, a ratchetwheel' mounted looselyon the sleeve, a spring flexibly connecting the ratchet-wheel and seconddrum, a door, and means by the swinging of the door for oscillating theratchet-wheel.

4. In a self-winding spring-actuated doorbell, a spindle, a sleevemounted loosely on the spindle, means for preventing rotation of thesleeve except in one direction, a drum rotating with the sleeve, aspring fastened to the spindle at one end and to the drum at the other,means for vibrating the hammer by the force of the spring to ring thegong, a second drum mounted in a fixed manner on the sleeve,

a ratchet-wheel mounted loosely on the sleeve, a spring flexiblyconnecting the ratchet-wheel and second drum, a third drum mounted onthe second drum, a spring flexibly connecting the third drum with afixed support, a pawl carried by the third drum and engaging the teethof the ratchet-wheel, a door, and a flexible tie connecting the thirddrum with the frame of the door whereby the swingingv of the door willwind the first-named spring.

5. In a bell-ringing apparatus, a spindle, a sleeve loosely mountedthereon, a drum carried by the sleeve, a pawl and ratchet to allowrotation of the sleeve and drum in one direction only, a springconnected at one end with the spindle and with the drum at the other, asecond drum mounted in a fixed manner on the sleeve, a ratchet-wheelmounted loosely on the sleeve and having a mutilated hub taking into thebore of the second drum,

a coiled spring between the hub and rim of and a flexible tie connectingthe lever extenthe drum having one end secured to the drum sion with thedoor-frame.

and the other to the ratchet-Wheel, a post from In witness whereof Ihave hereunto set my the sleeve taking in the mutilation of the hub,hand and seal, at Indianapolis, Indiana, this 5 a third drum mountedupon the first drum, a 5th day of May, A. D. 1908.

spring flexibly connecting the third drum with a fixed support, a pawlpivoted to the third VIVIAN FULLER drum and engaging the teeth of theratchet- Witnesses:

wheel, a lever extension from the third drum, JOSEPH A. MINTURN,

10 a door, a frame to which the door is hinged PALMER lVIORG-A.

